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Title: Site U1443
Structure and paleogeographic history of the northern Ninetyeast Ridge International Ocean Discovery Program (IODP) Site U1443 is located ~100 m southeast of Ocean Drilling Program (ODP) Leg 121 Site 758 on the crest of the Ninetyeast Ridge and is a redrill of Site 758 (Figure F1). The Ninetyeast Ridge represents the trace of the Kerguelen/Ninetyeast hotspot prior to middle Eocene rifting (Shipboard Scientific Party, 1989a). As a result of northward movement, Site U1443 moved from temperate southern latitudes during the Campanian, to ~5°S near the Oligocene/Miocene boundary, and to its present location of 5°N in the southernmost Bay of Bengal. The site has been within 10° of the Equator for the past 35 My (Shipboard Scientific Party, 1989a). The ridge-top location has prevented the deposition of sedimentary sequences typically associated with fan transport processes.  more » « less
Award ID(s):
1326927
PAR ID:
10578850
Author(s) / Creator(s):
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more » ; ; ; ; ; ; ; ; ; ; ; ; « less
Publisher / Repository:
International Ocean Discovery Program
Date Published:
Journal Name:
Proceedings of the International Ocean Discovery Program Expedition reports
Volume:
353
Issue:
103
ISSN:
2377-3189
ISBN:
978-1-954252-46-2
Subject(s) / Keyword(s):
International Ocean Discovery Program IODP Expedition 353 JOIDES Resolution Site U1443 Indian monsoon monsoon paleoclimate paleoceanography Miocene Pliocene Pleistocene Holocene Cretaceous Paleogene Ninetyeast Ridge Indian Ocean salinity orbital abrupt climate change
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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